% ---------------------------------------------------------------------
% EG author guidelines plus sample file for EG publication using LaTeX2e input
% D.Fellner, v1.17, Sep 23, 2010


\title[Precomputed Volume Radiance Transfer using Photon Mapping]%
      {Precomputed Volume Radiance Transfer using Photon Mapping}

% for anonymous conference submission please enter your SUBMISSION ID
% instead of the author's name (and leave the affiliation blank) !!
\author[paper 1090]{paper 1090}

%\author[D. Fellner \& S. Behnke]
%       {D.\,W. Fellner\thanks{Chairman Eurographics Publications Board}$^{1,2}$
%        and S. Behnke$^{2}$
%%        S. Spencer$^2$\thanks{Chairman Siggraph Publications Board}
%        \\
%% For Computer Graphics Forum: Please use the abbreviation of your first name.
%         $^1$TU Darmstadt \& Fraunhofer IGD, Germany\\
%         $^2$Institut f{\"u}r ComputerGraphik \& Wissensvisualisierung, TU Graz, Austria
%%        $^2$ Another Department to illustrate the use in papers from authors
%%             with different affiliations
%       }

% ------------------------------------------------------------------------

% if the Editors-in-Chief have given you the data, you may uncomment
% the following five lines and insert it here
%
% \volume{27}   % the volume in which the issue will be published;
% \issue{1}     % the issue number of the publication
% \pStartPage{1}      % set starting page


%-------------------------------------------------------------------------
\begin{document}
\teaser{
\centering
\subfigure[xxx fps]
{\includegraphics[width=0.245\linewidth]{test2c}}
\subfigure[xxx fps]
{\includegraphics[width=0.245\linewidth]{test2c}}
\subfigure[xxx fps]
{\includegraphics[width=0.245\linewidth]{test2c}}
\subfigure[xxx fps]
{\includegraphics[width=0.245\linewidth]{test2c}}
%\includegraphics[width=\linewidth]{teaser}
\caption{Smoke Rendering Result}
 \label{fig:teaser}
}
\maketitle
\begin{abstract}
In this paper, we present a novel real-time volume rendering approach that achieves general volume effects such as volumetric shadow, caustics and multiple scattering. The approach is based on a precomputed radiance transfer framework that incorporates volumetric photon mapping as the radiance estimation process. In precomputation stage, we firstly design a new photon sampling method for volumes under spherical distant lightings to cast photons into volume. Then, instead of gathering photon's energy for each voxel, we present an efficient photon splatting technique for volumetric spherical radiance estimation with low memory consumption. To process high-resolution dataset, the volumetric radiance data are further compressed through an out-of-core cluster-based tensor approximation. In following rendering stage, with standard ray marching, our method renders various high-quality volume effects in real-time for both homogeneous and hetergeneous volume media.
\begin{classification} % according to http://www.acm.org/class/1998/
\CCScat{Computer Graphics}{I.3.3}{Picture/Image Generation}{Line and curve generation}
\end{classification}

\end{abstract}


%-------------------------------------------------------------------------
\input{VolGI_Intro}
\input{VolGI_RelatedWorks}
\input{VolGI_OverView}
\input{VolGI_REstimation}
\input{VolGI_VolRendering}
\input{VolGI_Results}
\input{VolGI_Conclusion}
%------------------------------------------------------------------------
%\subsection{PDF Generation}

%Your final paper should be delivered as a PDF document with all typefaces
%embedded. \LaTeX{} users should use \texttt{dvips} and \texttt{ps2pdf} to
%create this PDF document. Adobe Acrobat Distiller may be used in place of
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%make certain that all typefaces are embedded and images are not downsampled
%or subsampled during the PDF creation process.

%Users with no access to these PDF creation tools should make available a
%PostScript file and we will make a PDF document from it.


%The PDF file \emph{must not} be change protected.

%------------------------------------------------------------------------
%\subsubsection*{Configuration Notes: dvips / ps2pdf / etc.}

%\noindent
%\texttt{dvips} should be invoked with the \texttt{-Ppdf} and \texttt{-G0}
%flags in order to use Type 1 PostScript typefaces:

%\begin{verbatim}
%    dvips -t a4 -Ppdf -G0 -o my.ps my.dvi
%\end{verbatim}


%\noindent
%If you are using version 7.x of GhostScript, please use the following method of invoking \texttt{ps2pdf}, in
%order to embed all typefaces and ensure that images are not downsampled or subsampled in the PDF
%creation process:

%\begin{verbatim}
%  ps2pdf -dMaxSubsetPct=100 \
%         -dCompatibilityLevel=1.3 \
%         -dSubsetFonts=true \
%         -dEmbedAllFonts=true \
%         -dAutoFilterColorImages=false \
%         -dAutoFilterGrayImages=false \
%         -dColorImageFilter=/FlateEncode \
%         -dGrayImageFilter=/FlateEncode \
%         -dMonoImageFilter=/FlateEncode \
%         mypaper.ps mypaper.pdf
%\end{verbatim}

%If you are using version 8.x of GhostScript, please use this method in place of the example above:
%\begin{verbatim}
%  ps2pdf -dPDFSETTINGS=/prepress \
%         -dCompatibilityLevel=1.3 \
%         -dAutoFilterColorImages=false \
%         -dAutoFilterGrayImages=false \
%         -dColorImageFilter=/FlateEncode \
%         -dGrayImageFilter=/FlateEncode \
%         -dMonoImageFilter=/FlateEncode \
%         -dDownsampleColorImages=false \
%         -dDownsampleGrayImages=false \
%         mypaper.ps mypaper.pdf
%\end{verbatim}

%------------------------------------------------------------------------
%\subsubsection*{Configuration Notes: pdftex / pdflatex / etc.}

%\noindent
%Configuration of these tools to embed all typefaces can be accomplished by editing the \texttt{updmap.cfg} file
%to enable inclusion of the standard (or base) 14 typefaces.

%Linux users can run the \texttt{updmap} script to do this:
%\begin{verbatim}
%updmap --setoption pdftexDownloadBase14 true
%\end{verbatim}

%Windows users should edit the \texttt{updmap.cfg} files found in their TeX installation directories (one or both
%of the following may be present):
%\begin{verbatim}
%  INSTALLDIR\texmf\web2c\updmap.cfg
%  INSTALLDIR\localtexmf\miktex\config\updmap.cfg
%\end{verbatim}

%Ensure the value for \texttt{pdftexDownloadBase14} is "true," and then follow the instructions found here:
%\httpAddr{//docs.miktex.org/manual/} to update your MikTeX installation.

%------------------------------------------------------------------------
%\subsubsection*{Configuration Notes: Acrobat Distiller}

%We recommend to download and install the version of the ``CMW'' Adobe Acrobat Distiller job options file
%appropriate for your operating system and version of Acrobat from the following URL:

%\httpAddr{//www.cadmusmediaworks.com/index2.html}\\
%in the ``(Operating System)/Applications/Distiller Settings'' folder. The ``CMW'' job options file embeds
%all typefaces and does not downsample or subsample images when creating the PDF document.
%------------------------------------------------------------------------
%\subsection{Copyright forms}

%You must include your signed Eurographics copyright release form
%when you submit your finished paper. We MUST have this form before
%your paper can be published in the proceedings.

%-------------------------------------------------------------------------
%\subsection{Conclusions}

%Please direct any questions to the production editor in charge of
%these proceedings.

%-------------------------------------------------------------------------
\newpage
\bibliographystyle{eg-alpha}
\footnotesize%for compact space
\bibliography{VolumeRTGI}
%-------------------------------------------------------------------------
%\newpage
%\begin{figure*}[tcb]
%  \centering
%  \mbox{} \hfill
%  % the following command controls the width of the embedded PS file
%  % (relative to the width of the current column)
%  \includegraphics[width=.3\linewidth]{sampleFig}
%  % replacing the above command with the one below will explicitly set
%  % the bounding box of the PS figure to the rectangle (xl,yl),(xh,yh).
%  % It will also prevent LaTeX from reading the PS file to determine
%  % the bounding box (i.e., it will speed up the compilation process)
%  % \includegraphics[width=.3\linewidth, bb=39 696 126 756]{sampleFig}
%  \hfill
%  \includegraphics[width=.3\linewidth]{sampleFig}
%  \hfill \mbox{}
%  \caption{\label{fig:ex3}%
%           For publications with color tables (i.e., publications not offering
%           color throughout the paper) please \textbf{observe}:
%           for the printed version -- and ONLY for the printed
%           version -- color figures have to be placed in the last page.
%           \newline
%           For the electronic version, which will be converted to PDF before
%           making it available electronically, the color images should be
%           embedded within the document. Optionally, other multimedia
%           material may be attached to the electronic version. }
%\end{figure*}
\end{document}
